Answer:
The organisms in that habitat including the extreme bacteria, will gradually decline
Explanation:
According to the question, an extreme bacteria lives and thrives in an hydrothermal vent where extremely hot water, methane gas, and sulfur are released. The hydrothermal vent located deep in the ocean is the habitat of the bacteria, and considering the fact that it thrives there means it is better adapted to do well in such extreme environment using the sulfur and methane gas produced by the vent for its development.
If the hydrothermal vent becomes inactive i.e. no production of sulfur and methane, and cold, the extreme bacteria might not survive as the conditions required for its optimal functioning are no longer met. The bacteria also makes up the base of the food web in that habitat (constituting organisms like mussels, tube works), meaning that, it begins the feeding chain in that habitat. Hence, a decline in the number of the bacteria will result in a decline in the number of other organisms dependent on the bacteria as energy source (food).
The cellular response to the second messenger is a mutation that affects ca++ binding to calmodulin and is most likely to interfere with what aspect of a signal transduction pathway.
<h3>Ca++ binding to calmodulin :</h3>
This protein-protein interaction ultimately has a physiological consequence; for instance, in smooth muscle, Ca2+ binding to calmodulin causes it to connect with and activate myosin light chain kinase, which in turn catalyzes the phosphorylation of myosin. The smooth muscle contracts as a result of this reaction.
A common, tiny (148 amino acids) calcium signaling protein called calmodulin (CaM) controls the actions of numerous cellular proteins. It has two calcium-binding sites in the N-domain (I and II) and two more in the C-domain (III and IV).
In order for smooth muscle to contract, calmodulin is crucial for excitation-contraction (EC) coupling and the start of the cross-bridge cycling in smooth muscle. The head of the myosin light chain must be phosphorylated to initiate smooth muscle contraction.
Learn more about calmodulin here:
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3. (2) lithosphere
4. (1) analysis of earthquake wave data
5. (2) mantle
I think these are the answers
From the right atrium, the deoxygenated blood drains into the right ventricle through the right atrioventricular (AV) valve, which is so named because it is between the atrium and the ventricle. This valve is also referred to as the tricuspid valve because it has three flaps in its structure. When the ventricles contract, the AV valve closes off the opening between the ventricle and the atrium so that blood does not flow back up into the atrium.As the right ventricle contracts, it forces the deoxygenated blood through the pulmonary semilunar valve and into the pulmonary artery. Semilunar means half-moon and refers to the shape of the valve. Note that this is the only artery in the body that contains deoxygenated blood; all other arteries contain oxygenated blood. The semilunar valve keeps blood from flowing back into the right ventricle once it is in the pulmonary artery.The pulmonary artery carries the blood that is very low in oxygen to the lungs, where it becomes oxygenated. i hope this helps you
A muscle cell is also termed as a myocyte. A myocyte is a long tubular-shaped cell found in muscle tissue. They are produced through a process called myogenesis. Myocytes develop from myoblasts which are embryonic cells. The different types of muscle cells include: skeletal, smooth, and cardiac myocytes.
